Hi,
I am using Pluto SLM having resolution (1920 X 1080) of pixel size 8um. I want to generate a beam at Fourier Transform (FT) plane of a lens (focal length f=10cm) by displaying an amplitude grating mask on to the SLM. At FT plane I used a CCD camera to record the beam. I want to generate the same equal size and shape of the beam experimentally recorded beam in simulation using Matlab. CCD camera has the resolution of 1600 x 1200 and pixel size of 4.4um.
For this I make a mask of size equal to the resoLultion (1920 X 1080) of SLM with pixel size 8um. Then I took FFT of the generated mask which provide me FT profile at FT plane. I used relation for spatial coordinate at FT PLANE x2=lambdaffx, where, lambda= wavelength of laser beam, fx = spatial frequency.
so what should be the size of image at FT plane which give same size and shape of the beam as in experiment? Is FT PLANE coordinates should be equal to the camera resolutions and pixels ? How should I display the images in simulation?
Please give your suggestion.
Thanks.